the loss of one or more sounds at the beginning of a word, as in squire for esquire
withdrawal of whole blood from a donor, extraction of needed components, as platelets, and return of remaining blood to the donor
APHERESIS, a medical technology in which the blood of a donor or patient is passed through an apparatus that separates out one particular constituent and returns the remainder to the circulation [adj]
relating to apheresis, the taking away of a syllable at the beginning of a word also APHAERETIC [adj]